23 Bonnie Lane, Union, ME 04862

$775,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 3,596 Lot Size (sq. ft.): 54,450 Status: Active
Current Price: $775,000 List Date: 2/23/2026 Last Modified: 2/24/2026

Description

Beautiful post and beam home set on 1.25 well-kept acres with a four-car garage and separate in-law apartment. Welcome to 23 Bonnie Lane, a spacious three-bedroom, three full bath home featuring a full in-law apartment and offering three levels of comfortable living, enjoyment, and ample room to entertain. Warm wood beams and cathedral ceilings create timeless character throughout the main house. The open concept kitchen and dining area flow into a step-down living room featuring a woodstove with brick hearth and chimney. The spacious main floor primary bedroom is bright and inviting, enhanced by recently added transom windows and an ensuite bath with tile shower and double vanity. A guest bedroom with beamed ceiling and built-ins, full hall bath and convenient first-floor laundry complete the main level. The second floor suite offers a kitchenette, desk area, generous sleeping space and full bath. The finished basement provides additional entertaining space with v-match finishes and a dedicated gym area. A mudroom connects to four heated garage bays with heat pumps and automatic openers for year-round comfort. Above the garage, a fully equipped in-law apartment includes a full kitchen with dishwasher, heat pump, full bath, laundry and private balcony. Outside, enjoy a fenced yard, paved driveway, large deck and a 16-person swim spa with pergola, plus wood and tractor sheds. Conveniently located just 20 minutes to Camden or Rockland and under an hour to Augusta. Several freshwater ponds and lakes are nearby, along with abundant opportunities for fishing, hiking and outdoor recreation. Virtual tour available.

Supplements: ********

More Information MLS# 1652563

Property Sub-Type

Property Sub-Type: Single Family Residence

Location Information

Book: 5348 Leased Land: No Page: 270 Map: 3 Lot: 26-3 Zoning Overlay: No Association: No Tree Growth Y/N: No Street #: 23 Street Name: Bonnie Street Type: Lane County: Knox Town: Union State/Province: ME Zip Code: 04862 Zip +4: 3045 Zoning: Rural Full Tax Amount $: 7049 Tax Year: 2025 Geo Lat: 44.212179 Geo Lon: -69.21505

Property Information

Surveyed: Unknown Seasonal: No Deed: All Lot Size Acres +/-: 1.25 # Rooms: 10 Total Baths: 4 Total Half Baths: 0 Color: Moss Green Road Frontage: No # Fireplaces: 1 SqFt Finished Above Grade: 2854 SqFt Finished Below Grade: 742 SqFt Source: Other Other Source of Square Footage: Matterport Furniture: Unfurnished Garage: No Garage Spaces: 4 # Bedrooms: 4 Total Full Baths: 4 Year Built: 1991 SqFt Finished Total: 3596 Source of Acreage: Deed

Site

Level: 1 Open: 1 Right of Way: 1 Well Landscaped: 1

Location

Near Golf Course: 1 Near Shopping: 1 Near Town: 1 Rural: 1

Roads

Gravel: 1 Private Road: 1

Transportation

Major Road Access: 1

Water Info

Water Frontage: No Water View: No

Recreational Water

Lake/Fresh Water: 1 Nearby: 1 Public: 1

Construction

Other: 1 Wood Frame: 1

Other Structures

Outbuilding: 1 Shed(s): 1

Structure Type

Post & Beam: 1

Basement

Finished: 1 Full: 1 Partial: 1

View

Trees/Woods: 1

Foundation Materials

Poured Concrete: 1

Exterior

Clapboard: 1 Wood Siding: 1

Roof

Pitched: 1 Shingle: 1

Heat System

Baseboard: 1 Heat Pump: 1 Hot Water: 1 Zoned: 1

Appliances Included

Dishwasher: 1 Dryer: 1 Electric Range: 1 Gas Range: 1 Microwave: 1 Refrigerator: 1 Washer: 1 Other: 1 Other Appliances: Electric range, Fridge x2, W/D x3, DW x2

Heat Fuel

Electric: 1 Oil: 1 Wood: 1

Cooling

Heat Pump: 1

Floors

Carpet: 1 Hardwood: 1 Linoleum: 1 Tile: 1 Wood: 1

Kitchen Countertop

Butcher Block: 1 Formica: 1

Parking

5 - 10 Spaces: 1 Off Street: 1 On Site: 1

Style

Contemporary: 1

Electric

Circuit Breakers: 1 Generator Hookup: 1

Bedroom 1

Bedroom 1: 1 Bedroom 1 Level: Second

Utilities

Utilities On: No

Bedroom 1 Amenities

Built-Ins: 1 Closet: 1 Full Bath: 1 Separate Shower: 1

Gas

Bottled: 1

Sewer

Private Sewer: 1

Water

Private: 1

Driveway

Paved: 1

Basement Entry

Doghouse: 1 Interior: 1

Water Heater

Off Heating System: 1

Window Features

Double Pane Windows: 1

Amenities

1st Floor Bedroom: 1 1st Floor Primary Bedroom w/Bath: 1 Animal Containment System: 1 Fence: 1 Hot Tub: 1 In-Law Apartment: 1 Laundry - 1st Floor: 1 Laundry - 2nd Floor: 1 One-Floor Living: 1 Other Amenities: 1 Pool-Above Ground: 1 Primary Bedroom w/Bath: 1 Shower: 1 Storage: 1

Patio and Porch Features

Deck: 1 Porch: 1

Equipment

Generator: 1 Internet Access Available: 1

Vehicle Storage

4+ Car: 1 Auto Door Opener: 1 Direct Entry to Living: 1 Heated: 1 Attached: 1

Dining Room

Dining Room: 1 Dining Room Level: First

Dining Room Amenities

Cathedral Ceiling: 1

Exercise Room

Exercise Room: 1 Exercise Room Level: Basement

Kitchen

Kitchen: 1 Kitchen Level: First

Kitchen Amenities

Cathedral Ceiling: 1 Island: 1

Living Room

Living Room: 1 Living Room Level: First

Living Room Amenities

Cathedral Ceiling: 1 Heat Stove: 1 Sunken/Raised: 1

Primary Bedroom

Primary Bedroom: 1 Primary Bedroom Level: First

Primary Bedroom Amenities

Cathedral Ceiling: 1 Closet: 1 Double Vanities: 1 Full Bath: 1 Separate Shower: 1 Suite: 1 Vaulted Ceiling: 1

Mud Room

Mud Room: 1 Mud Room Level: First

Office

Office: 1 Office Level: First

Office Amenities

Built-Ins: 1

Other Room 1

Other Room 1: 1 Other Room 1 Level: Basement

Other Room Amenities 1

Rec Room: 1

Room Features

Above Garage: 1 Balcony/Deck: 1 Breakfast Nook: 1 Built-Ins: 1 Cathedral Ceiling(s): 1 Closet: 1 Double Vanity: 1 Eat-in Kitchen: 1 Four-Season: 1 Full Bath: 1 Heat Stove: 1 Heated: 1 Kitchen Island: 1 Laundry/Laundry Hook-up: 1 Rec Room: 1 Separate Shower: 1 Stairway: 1 Storage: 1 Suite: 1 Sunken/Raised: 1 Vaulted Ceiling(s): 1

Contract Information

Status: Active Original List Price: 775000 List Price: $775,000 Current Price: $775,000

Property Features

Site: Level; Open; Right of Way; Well Landscaped Location: Near Golf Course; Near Shopping; Near Town; Rural Roads: Gravel; Private Road Transportation: Major Road Access Recreational Water: Lake/Fresh Water; Nearby; Public View: Trees/Woods Appliances Included: Dishwasher; Dryer; Electric Range; Gas Range; Microwave; Refrigerator; Washer; Other Kitchen Countertop: Butcher Block; Formica Style: Contemporary Structure Type: Post & Beam Construction: Other; Wood Frame Basement: Finished; Full; Partial Basement Entry: Doghouse; Interior Foundation Materials: Poured Concrete Roof: Pitched; Shingle Exterior: Clapboard; Wood Siding Heat System: Baseboard; Heat Pump; Hot Water; Zoned Heat Fuel: Oil; Wood Water Heater: Off Heating System Cooling: Heat Pump Floors: Carpet; Hardwood; Linoleum; Tile; Wood Window Features: Double Pane Windows Amenities: 1st Floor Bedroom; 1st Floor Primary Bedroom w/Bath; Animal Containment System; Fence; Hot Tub; In-Law Apartment; Laundry - 1st Floor; Laundry - 2nd Floor; One-Floor Living; Other Amenities; Pool-Above Ground; Primary Bedroom w/Bath; Shower; Storage Patio and Porch Features: Deck; Porch Equipment: Generator; Internet Access Available Driveway: Paved Parking: 5 - 10 Spaces; Off Street; On Site Vehicle Storage: 4+ Car; Auto Door Opener; Direct Entry to Living; Heated Other Structures: Outbuilding; Shed(s) Electric: Circuit Breakers; Generator Hookup Gas: Bottled Sewer: Private Sewer Water: Private

Room Information

Kitchen Level: First Dining Room Level: First Living Room Level: First Primary Bedroom Level: First Office Level: First Mud Room Level: First Bedroom 1 Level: Second Exercise Room Level: Basement Other Room Level: Basement In-law Floorplan Level: Second
Listing Office: Legacy Properties Sotheby's International Realty
IDX
Last Updated: February - 24 - 2026
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